Yaesu FT-890 - Meter Functions; Meter Scale Overview; Top Panel Control Functions; Mode Selection & Operation Switches

Introduction
This manual provides technical information
necessary for servicing the Yaesu FT-890 HF
Transceiver. It does not include information
on specifications, installation and operation,
which are described in the FI-890 Operating
Manual, provided with each transceiver, or on
FT-890 accessories, which are described in
manuals provided with each.
Servicing this equipment requires expertise
in handling surface mount chip components.
Attempts by non-qualified persons to service
this equipment may result in permanent dam-
age not covered by warranty.
For the major circuit boards, each side of the
board is identified by the type of the majority of
components installed on that side. In most cases
one side has only chip components, and the
other has either a mixture of both chip and
lead components (trimmers, coils, electrolytic
capacitors, packaged ICs, etc.), or lead compo-
nents only.
While we believe the technical information
in this manual is correct, Yaesu assumes no
liability for damage that may occur as a result
of typographical or other errors that may be
present. Your cooperation in pointing out any
inconsistencies in the technical information
would be appreciated.
Yaesu Musen reserves the right to make
changes in this transceiver and the alignment
procedures, in the interest of technological im-
provement, without notification of the own-
ers.
FT-890 Technica] Supplement
1-1